「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞30-11-00∞∞∞∞∞∞∞∞∞∞Page 303
 Feb 01/98 CES

 Wing Anti-ice Selected In Air (A/C Power On, P/BSW 3DL Operated, No Faults)
 Figure 302

 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞30-11-00∞∞∞∞∞∞∞∞∞∞Page 304
 Feb 01/98 CES

 Wing Anti-ice Test Selected On Ground (30 Seconds Delay Not Expired, P/BSW 3DL
 Operated)
 Figure 303

 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞30-11-00∞∞∞∞∞∞∞∞∞∞Page 305
 Feb 01/98 CES

 Wing Anti-ice Test Selected On Ground (30 Seconds Delay Expired, P/BSW 3DL Not
 Released)
 Figure 304

 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞30-11-00∞∞∞∞∞∞∞∞∞∞Page 306
 Feb 01/98 CES

 ENGINE AIR INTAKE ICE PROTECTION - FAULT ISOLATION PROCEDURES
_____________________________________________________________
 TASK 30-21-00-810-801
 Failure of the Engine 1 Air Intake Anti-Ice Valve in the Open Position
 1. Possible Causes
_______________
 - VALVE-ENG AIR INTAKE ANTI ICE (4000DN)

 - P/BSW-AIR INLET ANTI ICE VALVE ENG1 CTL (2DN1)

 - wiring between pin A/10 of the engine 1 air intake anti-ice valve and the ground terminal

 - wiring between pin A/9 of the engine 1 air intake anti-ice valve and the circuit breaker (1DN1)

 - C/B-ANTI ICE ENG1 CTL SUPPLY (1DN1)

 - defective muscle pressure tubes and hoses

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
R AMM 30-21-00-710-002 Operational Test of the Engine Air Intake Ice R Protection (with the Engines in operation) AMM 30-21-49-210-001 Visual Inspection of the Anti-Ice System Tubes, Ducts, and Hoses AMM 30-21-51-000-040 Removal of the Engine Air-Intake Anti-Ice Valve (4000DN) AMM 30-21-51-400-041 Installation of the Engine Air-Intake Anti-Ice Valve (4000DN)
 AMM 36-11-00-720-007  Functional Test of the Sense Lines Upstream of the Bleed Pressure Regulator Valve (4001HA) and Connected to the Control Solenoid (10HA1,10HA2)
 ASM 30-21/01
 3. Fault Confirmation
__________________
 A. Test R Do the operational test of the engine air intake ice protection (Ref. AMM R TASK 30-21-00-710-002).
 4. Fault Isolation
_______________
 A. Table of the circuit breakers used in this procedure:
 -------------------------------------------------------------------------------
PANEL DESIGNATION  IDENT. LOCATION
 -------------------------------------------------------------------------------
122VU ANTI ICE/ENG/1  1DN1 X10
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞30-21-00∞∞∞∞∞∞∞∞∞∞Page 201
 May 01/05 CES B. If the test confirms the fault:

 - do a check of the status of the circuit breaker (1DN1).
 (1) If the circuit breaker is closed:
 - do a check for 28VDC at pin A/9 of the engine 1 air intake anti-ice valve (4000DN).
 (a) If there is 28VDC:

 - replace the VALVE-ENG AIR INTAKE ANTI ICE (4000DN) (Ref. AMM TASK 30-21-51-000-040) and (Ref. AMM TASK 30-21-51-400-041).

 (b) If there is no 28VDC:

 - do a check for 28VDC at pin A/D2 of the ANTI ICE/ENG 1 pushbutton switch (2DN1).
 1 If there is 28VDC:
_
 - replace the P/BSW-AIR INLET ANTI ICE VALVE ENG1 CTL (2DN1).
 2 If there is no 28VDC:
_
 - do a check for a ground signal at pin A/10 of the engine 1 air intake anti-ice valve (4000DN).
 a If there is no ground signal:
_
 - repair the wiring between pin A/10 of the engine 1 air intake anti-ice valve and the ground terminal (Ref. ASM 30-21/01).
 b If there is a ground signal:
_
 - do a check of the wiring between pin A/9 of the engine 1 air intake anti-ice valve and the circuit breaker (1DN1).
　
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